Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line.
y = ln 3x, y = 4, y = 5, x = 0; about the y-axis
The answer I got was (pi/18)(e^16-e^8) and that is wrong.

The rumpart family is building a new room onto their house. the width of the new room will be 16 feet. the length of the room will be 4% greater than the width. write an expression to find the length of the new room. what will be the area of this new room?

Ineed someone to me answer my question i have to have this done and knocked out

Mr. zimmerman invested $25,000 in an account that draws 1.4 interest, compouneded annually. what is the total value of the account after 15 years